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.img-preview.uploading{background-color:#3b82f633}html[data-theme=dark] .chat-header{background-color:#1e1e1ebf;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}html[data-theme=dark] .modal{background-color:var(--chat-bg)}html[data-theme=dark] .modal-header,html[data-theme=dark] .modal-footer{border-color:var(--border-color)}html[data-theme=dark] #privacy-policy-settings-page .privacy-policy-content h2{text-align:center;color:var(--text-color)!important}html[data-theme=dark] #privacy-policy-settings-page .privacy-policy-content h2+p{text-align:center;color:var(--secondary-text-color)!important;border-bottom-color:var(--border-color)}html[data-theme=dark] #privacy-policy-settings-page p,html[data-theme=dark] #privacy-policy-settings-page li{color:var(--secondary-text-color)}html[data-theme=dark] #privacy-policy-settings-page h3,html[data-theme=dark] #privacy-policy-settings-page h4,html[data-theme=dark] #privacy-policy-settings-page strong{color:var(--text-color)!important;font-weight:700!important}html[data-theme=dark] #privacy-policy-settings-page a{color:#4db6ac!important}html[data-theme=dark] #privacy-policy-settings-page a:hover{border-bottom-color:#4db6ac;color:#26a69a!important}html[data-theme=dark] #privacy-policy-settings-page a:hover strong{color:#26a69a!important}html[data-theme=dark] #privacy-policy-settings-page a strong{color:#4db6ac!important;font-weight:700;text-decoration:none}html[data-theme=dark] #privacy-policy-settings-page a[href^="mailto:"]{color:#4db6ac!important}html[data-theme=dark] #privacy-policy-settings-page a[href^="mailto:"]:hover{border-bottom-color:#4db6ac;color:#26a69a!important}html[data-theme=dark] .auth-overlay{background:var(--auth-overlay-bg)}html[data-theme=dark] .auth-container{background:var(--auth-container-bg);border-color:var(--border-color)}html[data-theme=dark] #file-viewer .modal-header{background:var(--chat-bg)}html[data-theme=dark] #file-viewer 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.file-chip-display{background-color:#ffffff26;color:#fff;border-color:#ffffff4d}html[data-theme=dark] .message.user .content .file-chip-display svg{fill:#fff}html[data-theme=dark] .settings-content .btn-secondary:disabled,html[data-theme=dark] .sidebar-setting-actions button:disabled{background-color:#252528!important;color:#666!important;border-color:#333!important;box-shadow:none!important;cursor:not-allowed}html[data-theme=dark] .sidebar-setting select{color-scheme:dark}html[data-theme=dark] #file-viewer-text-container *{color:var(--text-color)!important}html[data-theme=dark] #file-viewer-text-container a{color:var(--accent-color)!important}html[data-theme=dark] #file-viewer-text-container .table-wrapper thead th{background-color:var(--gpt-input-bg)}html[data-theme=dark] #file-viewer-text-container .table-wrapper tbody tr:nth-of-type(2n){background-color:var(--gpt-input-bg)}html[data-theme=dark] #file-viewer-text-container .table-wrapper tbody 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#upload-menu{background-color:var(--chat-bg);border-color:var(--border-color)}html[data-theme=dark] #upload-menu .upload-menu-item:hover{background-color:var(--hover-bg)}html[data-theme=dark] #tools-menu{background-color:var(--chat-bg);border-color:var(--border-color)}html[data-theme=dark] .table-wrapper thead th{background-color:var(--gpt-input-bg)}html[data-theme=dark] .content .table-wrapper tbody tr:nth-of-type(2n){background-color:var(--gpt-input-bg)}html[data-theme=dark] .citation-link{background-color:#3b82f626;color:#8ab4f8}html[data-theme=dark] #multi-select-actions .btn-secondary{color:var(--accent-color)}html[data-theme=dark] .citation-link:hover{background-color:#3b82f64d}html[data-theme=dark] .image-viewer-modal .btn-secondary{color:var(--accent-color)}*{-webkit-tap-highlight-color:transparent;max-width:100%;box-sizing:border-box;scrollbar-color:rgba(0,0,0,.3) transparent;scrollbar-width:thin}@supports (-ms-ime-align: 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#sidebar{transition:none!important}.guest-hidden{display:none!important}.app-container.loaded{opacity:1}body{transition:padding-left .3s ease-in-out}html.keyboard-is-open{overflow:hidden!important;overscroll-behavior:none}body.keyboard-is-open{--safe-area-inset-bottom: 0px;overflow:hidden!important;overscroll-behavior:none}body.keyboard-is-open #chat-container,body.keyboard-is-open .chat-content-wrapper{overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;will-change:transform}body.keyboard-is-open .bottom-panel{padding-bottom:1rem}body.keyboard-is-open .modal-footer,body.keyboard-is-open .source-choice-sheet{padding-bottom:16px}main{flex-grow:1;overflow-y:auto;display:flex;flex-direction:column;align-items:center;width:100%}.chat-area{flex-grow:1;display:grid;grid-template-rows:auto 1fr auto;position:relative;transition:margin-left .3s ease-in-out,margin-right .3s 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.title{color:var(--accent-color)}.sidebar-footer{margin-top:auto;padding-top:16px;padding-left:8px}.settings-item{display:flex;align-items:center;padding:10px 16px;border-radius:24px;cursor:pointer;font-size:15px;color:var(--secondary-text-color)}.settings-item:hover{background-color:var(--hover-bg)}.settings-item svg{fill:var(--icon-color);width:24px;height:24px;margin-right:12px;flex-shrink:0}.chat-history-loading-item{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 16px;text-align:center;width:100%;animation:fadeIn .3s ease-out forwards}.chat-history-loading-item .loading-spinner .spinner{width:28px;height:28px;margin-bottom:16px}.chat-history-loading-item .loading-text{color:var(--secondary-text-color);font-size:14px;font-weight:500}#chat-history.multi-select-active .history-item{cursor:pointer}#chat-history.multi-select-active 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.history-item-checkbox:checked~.checkmark{background-color:var(--accent-color);border-color:var(--accent-color)}.history-item-checkbox-container .checkmark:after{content:"";position:absolute;display:none;left:6px;top:2px;width:5px;height:10px;border:solid white;border-width:0 3px 3px 0;transform:rotate(45deg)}.history-item-checkbox-container .history-item-checkbox:checked~.checkmark:after{display:block}#multi-select-actions{display:flex;gap:10px;padding:8px}#multi-select-actions button{flex-grow:1;padding:10px;border-radius:8px;border:none;font-weight:500;cursor:pointer}#multi-select-actions .btn-secondary{background-color:#f0f0f0;color:var(--text-color)}#multi-select-actions 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button[data-action=delete],.context-menu button[data-action=delete] svg{color:#f44336;fill:#f44336;transition:all .2s ease-in-out}.context-menu button[data-action=delete]:hover{background-color:#fbebee;color:#d32f2f}.context-menu button[data-action=delete]:hover svg{fill:#d32f2f}.context-menu button:active{background-color:var(--hover-bg)}.chat-content-wrapper{position:relative;flex-grow:1;display:flex;flex-direction:column;overflow:hidden;min-height:0}.loader-bar{position:absolute;top:0;left:0;width:100%;height:3px;background-color:var(--border-color);overflow:hidden;z-index:9;display:none}.loader-bar.loading{display:block}.loader-bar:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background-color:var(--accent-color);animation:indeterminate-progress 1.5s infinite ease-in-out}html[data-theme=dark] .loader-bar{background-color:var(--border-color)}html[data-theme=dark] .loader-bar:before{background-color:var(--accent-color)}@keyframes indeterminate-progress{0%{transform:translate(-100%)}to{transform:translate(100%)}}.chat-header{position:sticky;top:0;left:0;right:0;width:100%;z-index:10;display:grid;grid-template-columns:auto 1fr auto;align-items:center;padding:calc(8px + var(--safe-top)) 16px 8px 16px;background-color:#fffc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}#sidebar-toggle-btn{flex-shrink:0;background:none;border:1px solid var(--border-color);border-radius:8px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--icon-color);transition:background-color .2s ease;z-index:1}#sidebar-toggle-btn:hover{background-color:#f0f0f0}#sidebar-toggle-btn svg{fill:var(--icon-color);transition:background-color .2s ease,transform .3s ease-in-out}.header-right-items{grid-column:3 / 4;display:flex;align-items:center;gap:8px}.header-right-items a,.header-right-items button{white-space:nowrap}.privacy-link-header{background:none;border:none;color:var(--secondary-text-color);cursor:pointer;font-size:14px;font-family:var(--app-font-family);opacity:.6;transition:all .2s ease-in-out;padding:8px 20px 8px 8px;border-radius:6px;margin-right:16px;position:relative;white-space:nowrap}.privacy-link-header:hover{opacity:1;color:var(--accent-color);background-color:#0000000d}.update-dot{position:absolute;top:6px;right:6px;width:8px;height:8px;background-color:#f44336;border-radius:50%;border:1px solid white;box-shadow:0 0 3px #0000004d}#custom-login-btn{background-color:var(--accent-color);color:#fff;border:none;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .2s}#user-info-popover{display:none;position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--border-color);border-radius:8px;padding:12px 16px;box-shadow:0 4px 12px 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img{width:100%;height:100%;border-radius:50%;object-fit:cover}.avatar svg{width:20px;height:20px;fill:#fff}.content{padding-top:4px;line-height:1.6;min-height:24px;font-size:16px;word-wrap:break-word;overflow-wrap:break-word;word-break:break-word}.message.user{flex-direction:row-reverse;justify-content:flex-start}.message.user .message-container{text-align:right;max-width:70%;margin-left:auto}.message.user .content{background-color:#e8f0fe;border-radius:18px;padding:12px 16px;border:1px solid #dadce0;display:inline-block;text-align:left}.message.user .avatar{background:#1a73e8;margin-left:1rem;margin-right:0}.message.assistant{flex-direction:row;justify-content:flex-start}.message.assistant .message-container{text-align:left;max-width:100%;margin:0 auto}.message.assistant .avatar{background:#fff;border:1px solid #dadce0;background-image:url(/images/favicon.ico);background-size:20px 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a:hover{text-decoration:underline;color:var(--accent-color)}.message-actions{text-align:right;margin-top:4px;height:28px;display:flex;gap:8px;justify-content:flex-end}.message.assistant .message-actions{text-align:right}.message-action-btn{background:none;border:1px solid var(--border-color);border-radius:5px;cursor:pointer;padding:4px 8px;font-size:12px;color:var(--secondary-text-color);opacity:0;transition:opacity .2s,background-color .2s;display:inline-flex;align-items:center;gap:4px}.message-action-btn svg{width:14px;height:14px;fill:var(--secondary-text-color)}.message:hover .message-action-btn{opacity:1}.message-action-btn:hover{background-color:#f0f0f0}.bottom-panel{padding:1rem 0;padding-bottom:calc(1rem + var(--safe-area-inset-bottom));width:100%;background-color:var(--main-bg);display:flex;justify-content:center;position:sticky;bottom:0;z-index:10}.input-outer-wrapper{width:100%;max-width:900px;margin:0 auto;position:relative;padding:0 2rem}.input-wrapper{background-color:var(--gpt-input-bg);border:1px solid var(--gpt-input-border);border-radius:24px;box-shadow:var(--gpt-input-shadow);transition:box-shadow .2s ease-in-out,border-color .2s ease-in-out;display:flex;flex-direction:column;padding:8px 12px;position:relative;gap:8px}.input-wrapper:hover{box-shadow:var(--gpt-input-hover-shadow)}.input-wrapper:focus-within{box-shadow:var(--gpt-input-focus-shadow);border-color:var(--accent-color)}.input-wrapper.dragging{border-color:var(--accent-color);border-style:dashed;box-shadow:0 0 0 2px color-mix(in srgb,var(--accent-color) 25%,transparent);background:color-mix(in srgb,var(--accent-color) 7%,var(--gpt-input-bg))}.input-drop-overlay{position:absolute;inset:0;border-radius:20px;border:2px dashed var(--accent-color);background:color-mix(in srgb,var(--accent-color) 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#0000001a;padding:8px;z-index:100;width:200px;opacity:0;transform:translateY(10px);transition:opacity .2s ease,transform .2s ease;display:none}#upload-menu.visible{display:block;opacity:1;transform:translateY(0)}.upload-menu-item{display:flex;align-items:center;gap:12px;padding:10px;border-radius:8px;cursor:pointer;font-size:14px}.upload-menu-item:hover{background-color:var(--hover-bg)}.upload-menu-item svg{fill:var(--icon-color);width:20px;height:20px}.upload-menu-item:active{background-color:var(--hover-bg)}#model-select-menu{position:absolute;bottom:calc(100% + 8px);width:300px;max-width:none;left:50%;background-color:#fff;border:1px solid var(--border-color);border-radius:12px;box-shadow:0 4px 12px #0000001a;padding:8px;z-index:101;opacity:0;visibility:hidden;transform:translate(-50%) translateY(10px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease}#model-select-menu.visible{opacity:1;visibility:visible;transform:translate(-50%) translateY(0)}#model-select-menu 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.remove-btn{background:#666;color:#fff;border:none;border-radius:50%;width:16px;height:16px;font-size:12px;cursor:pointer;line-height:1;display:flex;align-items:center;justify-content:center}.file-chip .remove-btn:hover{background:#333}.img-preview{position:relative;width:80px;height:80px;border-radius:8px;overflow:hidden}.img-preview img{width:100%;height:100%;object-fit:cover}.img-preview .remove-btn{position:absolute;top:5px;right:5px;background:#0009;color:#fff;border:none;border-radius:50%;width:20px;height:20px;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center}.file-chip.uploading,.img-preview.uploading{background-color:#e3f2fd;border-color:var(--accent-color);justify-content:center;align-items:center}.upload-progress-container{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background-color:#f0f0f0b3}.progress-circle{width:24px;height:24px;transform:rotate(-90deg)}.progress-track{fill:none;stroke:#e0e0e0;stroke-width:3}.progress-fill{fill:none;stroke:var(--accent-color);stroke-width:3;stroke-linecap:round;stroke-dasharray:63;stroke-dashoffset:63;transition:stroke-dashoffset .3s ease}.file-chip-display{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background-color:#f0f0f0;border-radius:16px;border:1px solid var(--border-color);font-size:14px;color:var(--text-color);cursor:pointer;transition:background-color .2s;margin-bottom:8px}.file-chip-display:hover{background-color:#e0e0e0}.file-chip-display svg{fill:var(--icon-color);width:18px;height:18px;flex-shrink:0}.file-chip-display .file-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mermaid-render-container,.vega-lite-render-container{margin:16px 0}.mermaid-source-toggle,.vega-lite-source-toggle{display:block;margin:8px 0}.mermaid-render-toolbar,.vega-lite-toolbar{display:flex;justify-content:flex-end;gap:8px;margin-bottom:8px}.vega-lite-chart-host{width:420px;max-width:95%;margin:8px auto}.vega-lite-chart-host svg,.vega-lite-chart-host canvas{width:100%;height:auto;display:block}@media (max-width: 640px){.vega-lite-chart-host{width:100%;max-width:88vw;margin:6px auto}}.mermaid-download-btn,.vega-lite-download-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border-color, #e0e0e0);background-color:var(--gpt-input-bg, #ffffff);color:var(--primary-text-color, #333333);border-radius:6px;padding:6px;width:32px;height:32px;cursor:pointer;transition:background-color .2s ease,border-color .2s ease}.mermaid-download-btn:hover,.vega-lite-download-btn:hover{background-color:var(--hover-bg, #e8f0fe);border-color:var(--accent-color, #1a73e8)}.mermaid-download-btn svg,.vega-lite-download-btn svg{width:18px;height:18px;fill:currentColor}html[data-theme=dark] .mermaid-download-btn,html[data-theme=dark] .vega-lite-download-btn{background-color:var(--gpt-input-bg, #2c2c2f);color:var(--primary-text-color, #f0f0f0);border-color:var(--border-color, #444444)}html[data-theme=dark] .mermaid-download-btn:hover,html[data-theme=dark] .vega-lite-download-btn:hover{background-color:var(--hover-bg, #3a3a3a);border-color:var(--accent-color, #3b82f6)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.info-tooltip-container{position:relative;display:flex;align-items:center;justify-content:center}.info-icon{width:18px;height:18px;fill:#9aa0a6;cursor:pointer;transition:fill .2s ease}.info-icon:hover{fill:var(--icon-color)}.info-tooltip-text{visibility:hidden;opacity:0;width:240px;max-width:none;background-color:#333;color:#fff;text-align:center;border-radius:6px;padding:8px 12px;position:absolute;z-index:10;bottom:150%;left:50%;margin-left:-120px;transition:opacity .3s;font-size:13px;line-height:1.5;box-shadow:0 2px 8px #0003}.info-tooltip-text:after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:#333 transparent transparent transparent}.info-tooltip-container:hover .info-tooltip-text{visibility:visible;opacity:1}.char-counter{font-size:12px;color:var(--secondary-text-color);white-space:nowrap;flex-shrink:0;opacity:0;visibility:hidden;transition:opacity .3s ease-in-out,visibility .3s ease-in-out}.char-counter.visible{opacity:1;visibility:visible}.char-counter.over-limit{color:#f44336;font-weight:500}.btn-primary{background-color:var(--accent-color);color:#fff}.btn-primary:hover,#custom-login-btn:hover,#send-button:hover:not([disabled]),.settings-content .btn-primary:hover:not(:disabled),.auth-submit:hover:not(:disabled),#copy-file-content:hover{background-color:#1565c0}.btn-secondary{background-color:#f0f0f0;color:var(--text-color)}.btn-secondary:hover{background-color:#e0e0e0}.btn-secondary:disabled,#model-select-btn:disabled{background-color:#f5f5f5;color:#bdbdbd;cursor:not-allowed;border-color:#e0e0e0}.modal-overlay,.custom-confirm-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#0009;display:flex;align-items:center;justify-content:center;z-index:9999;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.modal-overlay.visible,.custom-confirm-overlay.visible{opacity:1;visibility:visible}.modal{width:90%;max-width:500px;background-color:#fff;border-radius:12px;box-shadow:0 10px 30px #0003;display:flex;flex-direction:column;overflow:hidden;transform:scale(.95);transition:transform .3s ease}.modal-overlay.visible .modal{transform:scale(1)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;padding-top:calc(16px + var(--safe-area-inset-top));border-bottom:1px solid var(--border-color);flex-shrink:0;position:relative}.modal-header h2{margin:0;font-size:20px;font-weight:600;position:absolute;left:50%;transform:translate(-50%)}.modal-header .close-btn{background:none;border:none;font-size:24px;cursor:pointer;color:var(--icon-color);padding:0}.modal-content{padding:24px;overflow-y:auto;flex-grow:1}.modal-content p{margin-top:0;line-height:1.6}.modal-footer{padding:16px 24px;padding-bottom:calc(16px + var(--safe-area-inset-bottom));border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:12px}.modal-footer button{padding:10px 20px;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;border:none}#privacy-policy-settings-page .privacy-policy-content h2{text-align:center;font-size:24px;font-weight:700;color:#111;margin-top:0;margin-bottom:16px}#privacy-policy-settings-page .privacy-policy-content h2+p{text-align:center;font-size:16px;color:#666;margin-bottom:24px;padding-bottom:16px;border-bottom:1px dashed #ccc}#privacy-policy-settings-page h3{font-size:16px;font-weight:600;color:#111;border-bottom:1px solid var(--border-color);padding-bottom:12px;margin-top:32px;margin-bottom:20px;letter-spacing:.5px}#privacy-policy-settings-page>h3:first-of-type{margin-top:0}#privacy-policy-settings-page h4{font-size:14px;font-weight:600;color:var(--secondary-text-color);margin-top:24px;margin-bottom:8px}#privacy-policy-settings-page p{margin-bottom:1.2em;color:#444}#privacy-policy-settings-page strong{color:#111!important;font-weight:700!important}#privacy-policy-settings-page ul{list-style:none;padding-left:0;margin-bottom:20px}#privacy-policy-settings-page li{position:relative;padding-left:24px;margin-bottom:12px;color:#444}#privacy-policy-settings-page li:before{content:"•";position:absolute;left:4px;top:-1px;color:var(--accent-color);font-size:20px;font-weight:700}#privacy-policy-settings-page a{color:#26a69a;text-decoration:none;font-weight:500;border-bottom:1px solid transparent;transition:border-color .2s ease-in-out,color .2s ease-in-out}#privacy-policy-settings-page a:hover{border-bottom-color:#26a69a;color:#1e8577}#privacy-policy-settings-page a:hover strong{color:#1e8577!important}#privacy-policy-settings-page a strong{color:#26a69a!important;font-weight:700;text-decoration:none}#privacy-policy-settings-page a[href^="mailto:"]{color:#26a69a;text-decoration:none;font-weight:500;border-bottom:1px solid transparent;transition:border-color .2s ease-in-out}#privacy-policy-settings-page a[href^="mailto:"]:hover{border-bottom:1px solid #26A69A;color:#1e7e72}#image-viewer-modal .modal-content{overflow-y:hidden}.image-viewer-modal img{max-width:100%;max-height:65vh;border-radius:8px;box-shadow:0 4px 12px #0000001a;object-fit:contain}.image-viewer-modal .modal-content img{max-width:90%;max-height:70vh}.modal-content img{transition:transform .3s ease}.modal-content img:hover{transform:scale(1.02)}.image-preview-container{position:relative;display:inline-block;line-height:0}.image-overlay-btn{position:absolute;top:12px;right:12px;background-color:#00000080;border:none;border-radius:50%;width:32px;height:32px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s ease,opacity .2s ease;opacity:0}.image-preview-container:hover .image-overlay-btn{opacity:.8}.image-overlay-btn:hover{background-color:#000000b3;opacity:1}.image-overlay-btn svg{fill:#fff;width:18px;height:18px}#settings-modal.modal{width:90%;max-width:720px;height:80vh;max-height:600px}.form-group{margin-bottom:12px}.form-group input,.form-group textarea{width:100%;padding:12px;border:1px solid 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h4{font-size:14px;font-weight:500;color:var(--secondary-text-color);margin:0 0 16px;padding-bottom:0;border-bottom:none;text-transform:uppercase;letter-spacing:.5px}.settings-page-grid{display:grid;grid-template-columns:1fr 1.6fr;column-gap:16px;row-gap:4px;align-items:flex-start;padding:10px 18px;border-bottom:1px solid var(--border-color);width:100%}.settings-page .settings-page-grid:last-of-type{border-bottom:none}.settings-description h3{margin:0 0 8px;font-size:16px;font-weight:600;color:var(--text-color);display:flex;align-items:center;gap:8px}.settings-description p{margin:0;font-size:14px;color:var(--secondary-text-color);line-height:1.4}.settings-form-area .form-group input{margin-bottom:6px}.settings-form-area .form-group input:last-child{margin-bottom:0}.settings-form-area 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input:focus-visible+.settings-toggle-slider{outline:2px solid rgba(59,130,246,.5);outline-offset:2px}html[data-theme=dark] .settings-toggle-slider{background-color:#94a3b840;box-shadow:inset 0 0 0 1px #94a3b833}html[data-theme=dark] .settings-toggle-slider:after{background-color:#f8fafc;box-shadow:0 2px 6px #0f172a73}html[data-theme=dark] .settings-toggle input:checked+.settings-toggle-slider{background-color:#2563ebcc;box-shadow:inset 0 0 0 1px #3b82f68c}.settings-form-area .form-group .usage-info{margin-top:6px;color:var(--secondary-text-color);line-height:1.5}.settings-page .btn-primary:active,.settings-page .btn-secondary:active{transform:scale(.98);transition:transform .1s ease}.settings-page .form-group:first-child h4{margin-top:0}#settings-nav-toggle-btn{display:none;background:none;border:none;color:var(--icon-color);cursor:pointer;padding:8px;margin-right:16px;border-radius:50%}#settings-nav-toggle-btn:hover{background-color:var(--hover-bg)}.settings-nav-header{display:none;justify-content:space-between;align-items:center;padding:10px 16px;margin-bottom:10px;border-bottom:1px solid var(--border-color)}.settings-nav-header h3{margin:0;font-size:18px;font-weight:500}.settings-content .settings-section{background-color:transparent;border:none;padding:0;margin:0}.settings-content .settings-section>h4:first-child{margin-top:0}.settings-content .settings-section .btn-primary,.settings-content .settings-section .btn-secondary{margin-top:16px}.settings-content .form-group input[type=password],.settings-content .form-group input[type=text]{background-color:#fff;padding:14px;font-size:15px;border:1px solid #dfe1e5;transition:all .2s ease-in-out}.settings-form{width:100%}.settings-form 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.custom-select option{background:var(--card-bg);color:var(--text-color)}.custom-dropdown{position:relative;width:100%;z-index:1000}.dropdown-trigger{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:8px;cursor:pointer;transition:all .2s ease;min-height:44px;box-sizing:border-box}.dropdown-trigger:hover{border-color:var(--accent-color)}.dropdown-trigger.active{border-color:var(--accent-color);box-shadow:0 0 0 2px #1a73e81a}.dropdown-text{flex:1;color:var(--text-color);font-size:14px;font-weight:500;text-align:left}.dropdown-arrow{width:20px;height:20px;color:var(--accent-color);transition:transform .2s ease;flex-shrink:0}.dropdown-trigger.active .dropdown-arrow{transform:rotate(180deg)}.dropdown-menu{position:absolute;top:100%;left:0;right:0;background:#fff;border:1.5px solid var(--border-color);border-top:none;border-radius:0 0 8px 8px;box-shadow:0 4px 12px #0000001a;max-height:200px;overflow-y:auto;z-index:1000;display:none}.dropdown-menu.show{display:block}.dropdown-item{padding:12px 14px;color:var(--text-color);cursor:pointer;transition:background-color .2s ease;font-size:14px;font-weight:500;border-bottom:1px solid var(--border-color)}.dropdown-item:last-child{border-bottom:none}.dropdown-item:hover{background:var(--hover-bg)}.dropdown-item.active{background:var(--accent-color);color:#fff}.dropdown-item.active:hover{background:var(--accent-color)}html[data-theme=dark] .dropdown-trigger{background:var(--card-bg);border-color:#ffffff26}html[data-theme=dark] .dropdown-trigger:hover{border-color:var(--accent-color)}html[data-theme=dark] .dropdown-menu{background:#1e1e1e;border-color:#ffffff26;box-shadow:0 4px 12px #0000004d}html[data-theme=dark] .dropdown-item{color:var(--text-color);border-bottom-color:#ffffff1a}html[data-theme=dark] .dropdown-item:hover{background:var(--hover-bg)}html[data-theme=dark] .dropdown-item.active{background:var(--accent-color);color:#fff}#profile-settings-page.settings-page.active{display:flex;flex-direction:column;justify-content:flex-start;align-items:center;overflow-y:auto}#profile-settings-page>.form-group{width:100%;max-width:420px;text-align:center}.profile-edit-layout{display:flex;flex-direction:column;align-items:center;gap:16px;margin-bottom:16px;background-color:#f8f9fa;border:1px solid #eef0f2;border-radius:12px;padding:32px 24px;margin-top:0;width:100%;max-width:420px}.profile-edit-layout .form-group{width:100%;max-width:320px;margin-bottom:0}.profile-edit-layout input{text-align:center}.profile-edit-layout #edit-username{background:transparent;border:none;border-bottom:2px solid #ddd;border-radius:0;font-size:18px;font-weight:500;padding:8px 0;transition:all .2s ease-in-out}.profile-edit-layout #edit-username:focus{border-bottom-color:var(--accent-color);box-shadow:none}.avatar-upload-container{display:flex;flex-direction:column;align-items:center;gap:8px;flex-shrink:0}.avatar-preview-wrapper{position:relative;width:96px;height:96px;border-radius:50%;cursor:pointer;overflow:hidden;box-shadow:0 4px 12px #0000001a;border:2px solid #fff}#avatar-preview{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-in-out}.avatar-preview-wrapper:hover #avatar-preview{transform:scale(1.05)}.avatar-edit-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#0006;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:500;opacity:0;transition:opacity .2s ease-in-out}.avatar-preview-wrapper:hover .avatar-edit-overlay{opacity:1}#save-profile-btn{display:block;width:100%;max-width:320px;margin:24px auto 0;padding:14px;font-size:16px;font-weight:500;border-radius:8px;border:none;cursor:pointer;transition:all .2s 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